…のも無理 (は) ない => It's natural for... N3
Evaluate
のも無理もない => (to be) natural,(to be) understandable N3
Evaluate
ようになる/なくなる => Become… N3
Time, Situation
なるべく => as much as possible N2
Limit, limit
~なるべくなら => as much as possible N1
Condition (hypothetical condition)
からつくる/でつくる => made from; made with N4
てくる => to start ~ N4
Situation
てくる => Already... now (Appearance) N4
Situation
昼となく夜となく => day and night N1
Continuous
てくる => to continue to now N4
Continuous
てくる => ...Approaching (Movement toward proximity) N4
Time
~く/ ~にする      => to make something ~ N4
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